错句~!
he is learning swimming才正确.
swim是动词,swimming是动名词
分析原句,主语he ,谓语is learning ,宾语swimming
swim是动词不作宾语
或者我可以说,有句型,learn to do sth,learn doing sth.就这样
swim也可以做名词,对的,但你看看下面的例句,有冠词a的.
n.
1. 游泳[S]
Shall we go for a swim?
我们去游泳好吗?
2. 晕眩,眼花[S]
3. 潮流,趋势[the S]